{% extends "base.html" %}

{% block head %}
<style>
#label-preview {
    background: #fafafa;
    position: relative;
    overflow: hidden;
}

/* Inserted custom CSS from user */
.card.scan-table-card table.print-module-table.scan-table thead th {
    border-bottom: 2px solid #dee2e6 !important;
    background-color: #f8f9fa !important;
    padding: 0.25rem 0.4rem !important;
    text-align: left !important;
    font-weight: 600 !important;
    font-size: 10px !important;
    line-height: 1.2 !important;
}

/* Enhanced table styling */
.card.scan-table-card table.print-module-table.scan-table {
    width: 100% !important;
    border-collapse: collapse !important;
}

.card.scan-table-card table.print-module-table.scan-table tbody tr:hover td {
    background-color: #f8f9fa !important;
    cursor: pointer !important;
}

.card.scan-table-card table.print-module-table.scan-table tbody tr.selected td {
    background-color: #007bff !important;
    color: white !important;
}
</style>
{% endblock %}

{% block content %}
<div class="scan-container" style="display: flex; flex-direction: row; gap: 20px; width: 100%; align-items: flex-start;">
    <!-- Label Preview Card -->
    <div class="card scan-form-card" style="display: flex; flex-direction: column; justify-content: flex-start; align-items: center; min-height: 700px; width: 330px; flex-shrink: 0; position: relative; padding: 15px;">
        <div class="label-view-title" style="width: 100%; text-align: center; padding: 0 0 15px 0; font-size: 18px; font-weight: bold; letter-spacing: 0.5px;">Label View</div>
        
        <!-- Label Preview Section -->
        <div id="label-preview" style="border: 1px solid #ddd; padding: 10px; position: relative; background: #fafafa; width: 301px; height: 434.7px;">
            <!-- Label content rectangle -->
            <div id="label-content" style="position: absolute; top: 65.7px; left: 11.34px; width: 227.4px; height: 321.3px; border: 2px solid #333; background: white;">
                <!-- Top row content: Company name -->
                <div style="position: absolute; top: 0; left: 0; right: 0; height: 32.13px; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 12px; color: #000; z-index: 10;">
                    INNOFA RROMANIA SRL
                </div>

                <!-- Row 2 content: Customer Name -->
                <div id="customer-name-row" style="position: absolute; top: 32.13px; left: 0; right: 0; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 11px; color: #000;">
                    <!-- Customer name will be populated here -->
                </div>

                <!-- Horizontal dividing lines for 9 rows (row 6 is double height) -->
                <div style="position: absolute; top: 32.13px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <div style="position: absolute; top: 64.26px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <div style="position: absolute; top: 96.39px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <div style="position: absolute; top: 128.52px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <div style="position: absolute; top: 160.65px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <!-- Row 6 is double height for Description -->
                <div style="position: absolute; top: 224.91px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <!-- Row 7 for Size -->
                <div style="position: absolute; top: 257.04px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <!-- Row 8 for Article Code -->
                <div style="position: absolute; top: 289.17px; left: 0; right: 0; height: 1px; background: #999;"></div>

                <!-- Vertical dividing line starting from row 3 to bottom at 40% width -->
                <div style="position: absolute; left: 90.96px; top: 64.26px; width: 1px; height: 257.04px; background: #999;"></div>

                <!-- Row 3 content: Quantity ordered -->
                <div style="position: absolute; top: 64.26px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Quantity ordered
                </div>
                <div id="quantity-ordered-value" style="position: absolute; top: 64.26px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: bold; color: #000;">
                    <!-- Quantity value will be populated here -->
                </div>

                <!-- Row 4 content: Customer order -->
                <div style="position: absolute; top: 96.39px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Customer order
                </div>
                <div id="client-order-info" style="position: absolute; top: 96.39px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; color: #000;">
                    <!-- Client order info will be populated here -->
                </div>

                <!-- Row 5 content: Delivery date -->
                <div style="position: absolute; top: 128.52px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Delivery date
                </div>
                <div id="delivery-date-value" style="position: absolute; top: 128.52px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; color: #000;">
                    <!-- Delivery date value will be populated here -->
                </div>

                <!-- Row 6 content: Description (double height row) -->
                <div style="position: absolute; top: 160.65px; left: 0; width: 90.96px; height: 64.26px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Description
                </div>
                <div id="description-value" style="position: absolute; top: 160.65px; left: 90.96px; width: 136.44px; height: 64.26px; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #000; text-align: center; line-height: 1.2; padding: 2px; overflow: hidden; word-wrap: break-word;">
                    <!-- Description value will be populated here -->
                </div>

                <!-- Row 7 content: Size -->
                <div style="position: absolute; top: 224.91px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Size
                </div>
                <div id="size-value" style="position: absolute; top: 224.91px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; color: #000;">
                    <!-- Size value will be populated here -->
                </div>

                <!-- Row 8 content: Article Code -->
                <div style="position: absolute; top: 257.04px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Article Code
                </div>
                <div id="article-code-value" style="position: absolute; top: 257.04px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; color: #000;">
                    <!-- Article code value will be populated here -->
                </div>

                <!-- Row 9 content: Prod Order (final row) -->
                <div style="position: absolute; top: 289.17px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Prod Order
                </div>
                <div id="prod-order-value" style="position: absolute; top: 289.17px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; color: #000;">
                    <!-- Prod order value will be populated here -->
                </div>
            </div>
            
            <!-- Barcode Frame - positioned 10px below rectangle with 2mm side margins -->
            <div id="barcode-frame" style="position: absolute; top: 395px; left: 7.56px; width: 295.44px; height: 50px; background: white; display: flex; flex-direction: column; align-items: center; justify-content: center;">
                <!-- Code 128 Barcode representation -->
                <div id="barcode-display" style="width: 100%; height: 45px; background: linear-gradient(90deg, #000 1px, transparent 1px, transparent 2px, #000 2px, transparent 3px, #000 4px, transparent 5px, #000 6px, transparent 7px, #000 8px, transparent 9px, #000 10px, transparent 11px, #000 12px, transparent 13px); background-size: 15px 100%; background-repeat: repeat-x;">
                </div>
                <!-- Barcode text below the bars -->
                <div id="barcode-text" style="font-size: 8px; font-family: 'Courier New', monospace; margin-top: 2px; text-align: center; font-weight: bold;">
                    <!-- Barcode text will be populated here -->
                </div>
            </div>
            
            <!-- Vertical Barcode Frame - positioned on the right side of the label -->
            <div id="vertical-barcode-frame" style="position: absolute; top: 70px; left: 245px; width: 50px; height: 309.96px; background: white; display: flex; flex-direction: column; align-items: center; justify-content: center;">
                <!-- Vertical Code 128 Barcode representation -->
                <div id="vertical-barcode-display" style="width: 50px; height: 280px; background: linear-gradient(0deg, #000 1px, transparent 1px, transparent 2px, #000 2px, transparent 3px, #000 4px, transparent 5px, #000 6px, transparent 7px, #000 8px, transparent 9px, #000 10px, transparent 11px, #000 12px, transparent 13px); background-size: 100% 15px; background-repeat: repeat-y;">
                </div>
                <!-- Vertical barcode text -->
                <div id="vertical-barcode-text" style="font-size: 6px; font-family: 'Courier New', monospace; margin-top: 5px; text-align: center; font-weight: bold; writing-mode: vertical-rl; text-orientation: mixed;">
                    <!-- Vertical barcode text will be populated here -->
                </div>
            </div>
        </div>
        
        <!-- Print Options and Button Section - Inside the Card -->
        <div style="width: 100%; margin-top: 20px;">
            <!-- Print Method Selection -->
            <div style="margin-bottom: 15px;">
                <label style="font-size: 12px; font-weight: 600; color: #495057; margin-bottom: 8px; display: block;">
                    🖨️ Print Method:
                </label>
                
                <div class="form-check mb-2">
                    <input class="form-check-input" type="radio" name="printMethod" id="directPrint" value="direct" checked>
                    <label class="form-check-label" for="directPrint" style="font-size: 11px; line-height: 1.3;">
                        <strong>Direct Print</strong><br>
                        <span class="text-muted">Print directly to thermal label printer</span>
                    </label>
                </div>
                
                <div class="form-check mb-2">
                    <input class="form-check-input" type="radio" name="printMethod" id="pdfGenerate" value="pdf">
                    <label class="form-check-label" for="pdfGenerate" style="font-size: 11px; line-height: 1.3;">
                        <strong>Generate PDF</strong><br>
                        <span class="text-muted">Create PDF for manual printing</span>
                    </label>
                </div>
            </div>
            
            <!-- Printer Selection -->
            <div id="printerSelection" style="margin-bottom: 15px;">
                <label style="font-size: 12px; font-weight: 600; color: #495057; margin-bottom: 5px; display: block;">
                    Select Printer:
                </label>
                <select id="printerSelect" class="form-control form-control-sm" style="font-size: 11px; padding: 4px 8px;">
                    <option value="default">Default Printer</option>
                    <option value="Epson TM-T20">Epson TM-T20</option>
                    <option value="Citizen CTS-310">Citizen CTS-310</option>
                    <option value="custom">Other Printer...</option>
                </select>
                <small class="text-muted" style="font-size: 10px;">Choose your thermal label printer</small>
            </div>
            
            <!-- Print Button -->
            <div style="width: 100%; text-align: center; margin-bottom: 15px;">
                <button id="print-label-btn" class="btn btn-success" style="font-size: 14px; padding: 10px 30px; border-radius: 6px; font-weight: 600;">
                    🖨️ Print Labels
                </button>
            </div>
            
            <!-- Print Information -->
            <div style="width: 100%; text-align: center; color: #6c757d; font-size: 11px; line-height: 1.4;">
                <div style="margin-bottom: 5px;">Creates sequential labels based on quantity</div>
                <small>(e.g., CP00000711-001 to CP00000711-063)</small>
            </div>
            
            <!-- Direct Print Service Download -->
            <div style="width: 100%; text-align: center; margin-top: 20px; padding-top: 15px; border-top: 1px solid #e9ecef;">
                <!-- Electron App (Recommended) -->
                <div style="background: #d4edda; border: 1px solid #c3e6cb; border-radius: 6px; padding: 12px; margin-bottom: 10px;">
                    <div style="font-size: 11px; color: #155724; margin-bottom: 8px;">
                        <strong>🖥️ Quality Print Desktop v1.0.0 (RECOMMENDED)</strong>
                    </div>
                    <div style="font-size: 10px; color: #495057; margin-bottom: 10px; line-height: 1.3;">
                        Professional desktop app • Direct hardware access • Rich formatting
                    </div>
                    <button onclick="downloadElectronApp()" class="btn btn-success btn-sm" style="font-size: 10px; padding: 4px 12px; margin-right: 5px;">
                        📥 Download Linux Version (99MB)
                    </button>
                    <button onclick="downloadPortableApp()" class="btn btn-outline-success btn-sm" style="font-size: 10px; padding: 4px 12px; margin-right: 5px;">
                        💻 Windows Portable (8KB)
                    </button>
                    <small style="color: #28a745; font-weight: bold;">✅ READY!</small>
                </div>
                
                <!-- Windows Service (Deprecated) -->
                <div style="background: #f8d7da; border: 1px solid #f5c6cb; border-radius: 6px; padding: 12px; margin-bottom: 10px;">
                    <div style="font-size: 11px; color: #721c24; margin-bottom: 8px;">
                        <strong>📦 Windows Print Service (DEPRECATED)</strong>
                    </div>
                    <div style="font-size: 10px; color: #6c757d; margin-bottom: 10px; line-height: 1.3;">
                        Legacy background service • Limited features • Use desktop app instead
                    </div>
                    <a href="{{ url_for('main.download_print_service') }}?package=complete" class="btn btn-outline-secondary btn-sm" download style="font-size: 10px; padding: 4px 12px; text-decoration: none;">
                        📥 Download Legacy Service
                    </a>
                </div>
                
                <div style="font-size: 9px; color: #6c757d; margin-top: 5px; line-height: 1.2;">
                    <strong>🏆 Desktop App Benefits:</strong> Direct thermal printing • Rich barcodes/QR codes • Better reliability<br>
                    <small>✨ Two versions: Full Linux AppImage or Lightweight Windows Portable • Cross-platform support</small>
                </div>
            </div>
        </div>
    </div>    <!-- Data Preview Card -->
    <div class="card scan-table-card" style="min-height: 700px; width: calc(100% - 350px); margin: 0;">
        <h3>Data Preview (Unprinted Orders)</h3>
        <button id="check-db-btn" class="btn btn-primary mb-3">Check Database</button>
        <div class="report-table-container">
            <table class="scan-table print-module-table">
                <thead>
                    <tr>
                        <th>ID</th>
                        <th>Comanda Productie</th>
                        <th>Cod Articol</th>
                        <th>Descr. Com. Prod</th>
                        <th>Cantitate</th>
                        <th>Data Livrare</th>
                        <th>Dimensiune</th>
                        <th>Com. Achiz. Client</th>
                        <th>Nr. Linie</th>
                        <th>Customer Name</th>
                        <th>Customer Art. Nr.</th>
                        <th>Open Order</th>
                        <th>Line</th>
                        <th>Printed</th>
                        <th>Created</th>
                    </tr>
                </thead>
                <tbody id="unprinted-orders-table">
                    <!-- Data will be dynamically loaded here -->
                </tbody>
            </table>
        </div>
    </div>
</div>

<script>
document.getElementById('check-db-btn').addEventListener('click', function() {
    const button = this;
    button.textContent = 'Loading...';
    button.disabled = true;

    fetch('/get_unprinted_orders')
        .then(response => {
            if (response.status === 403) {
                return response.json().then(errorData => {
                    throw new Error(`Access Denied: ${errorData.error}`);
                });
            } else if (!response.ok) {
                return response.text().then(text => {
                    throw new Error(`HTTP ${response.status}: ${text}`);
                });
            }
            return response.json();
        })
        .then(data => {
            console.log('Received data:', data);
            const tbody = document.getElementById('unprinted-orders-table');
            tbody.innerHTML = '';
            data.forEach((order, index) => {
                const tr = document.createElement('tr');
                tr.dataset.orderId = order.id;
                tr.dataset.orderIndex = index;
                tr.style.cursor = 'pointer';
                tr.innerHTML = `
                    <td style="font-size: 9px;">${order.id}</td>
                    <td style="font-size: 9px;"><strong>${order.comanda_productie}</strong></td>
                    <td style="font-size: 9px;">${order.cod_articol || '-'}</td>
                    <td style="font-size: 9px;">${order.descr_com_prod}</td>
                    <td style="text-align: right; font-weight: 600; font-size: 9px;">${order.cantitate}</td>
                    <td style="text-align: center; font-size: 9px;">
                        ${order.data_livrare ? new Date(order.data_livrare).toLocaleDateString() : '-'}
                    </td>
                    <td style="text-align: center; font-size: 9px;">${order.dimensiune || '-'}</td>
                    <td style="font-size: 9px;">${order.com_achiz_client || '-'}</td>
                    <td style="text-align: right; font-size: 9px;">${order.nr_linie_com_client || '-'}</td>
                    <td style="font-size: 9px;">${order.customer_name || '-'}</td>
                    <td style="font-size: 9px;">${order.customer_article_number || '-'}</td>
                    <td style="font-size: 9px;">${order.open_for_order || '-'}</td>
                    <td style="text-align: right; font-size: 9px;">${order.line_number || '-'}</td>
                    <td style="text-align: center; font-size: 9px;">
                        ${order.printed_labels == 1 ? 
                            '<span style="color: #28a745; font-weight: bold;">✓ Yes</span>' : 
                            '<span style="color: #dc3545;">✗ No</span>'}
                    </td>
                    <td style="font-size: 9px; color: #6c757d;">
                        ${order.created_at ? new Date(order.created_at).toLocaleString() : '-'}
                    </td>
                `;
                
                // Add click event for row selection
                tr.addEventListener('click', function() {
                    console.log('Row clicked:', order.id);
                    
                    // Remove selection from other rows
                    document.querySelectorAll('.print-module-table tbody tr').forEach(row => {
                        row.classList.remove('selected');
                        const cells = row.querySelectorAll('td');
                        cells.forEach(cell => {
                            cell.style.backgroundColor = '';
                            cell.style.color = '';
                        });
                    });
                    
                    // Select this row
                    this.classList.add('selected');
                    
                    // Force visual selection with inline styles
                    const cells = this.querySelectorAll('td');
                    cells.forEach(cell => {
                        cell.style.backgroundColor = '#007bff';
                        cell.style.color = 'white';
                    });
                    
                    // Update label preview with selected order data
                    updateLabelPreview(order);
                });
                
                tbody.appendChild(tr);
            });
            
            // Update the label preview with first row by default
            if (data.length > 0) {
                updateLabelPreview(data[0]);
                
                // Initialize PDF generation functionality
                addPDFGenerationHandler();
                
                // Initialize print service
                initializePrintService();
                
                // Auto-select first row
                setTimeout(() => {
                    const firstRow = document.querySelector('.print-module-table tbody tr');
                    if (firstRow) {
                        firstRow.classList.add('selected');
                        const cells = firstRow.querySelectorAll('td');
                        cells.forEach(cell => {
                            cell.style.backgroundColor = '#007bff';
                            cell.style.color = 'white';
                        });
                    }
                }, 100);
            }
        })
        .catch(error => console.error('Error fetching orders:', error))
        .finally(() => {
            button.textContent = 'Check Database';
            button.disabled = false;
        });
});

// Function to update label preview with selected order data
function updateLabelPreview(order) {
    const customerName = order.customer_name || 'N/A';
    document.getElementById('customer-name-row').textContent = customerName;
    
    // Update quantity ordered value
    const quantity = order.cantitate || '0';
    document.getElementById('quantity-ordered-value').textContent = quantity;
    
    // Update client order info (Com.Achiz.Client - Nr. Linie)
    const comAchizClient = order.com_achiz_client || '';
    const nrLinie = order.nr_linie_com_client || '';
    const clientOrderInfo = comAchizClient && nrLinie ? `${comAchizClient}-${nrLinie}` : 'N/A';
    document.getElementById('client-order-info').textContent = clientOrderInfo;
    
    // Update vertical barcode with client order info or default
    const verticalBarcodeData = clientOrderInfo !== 'N/A' ? clientOrderInfo : '000000-00';
    document.getElementById('vertical-barcode-text').textContent = verticalBarcodeData;
    
    // Update delivery date (using data_livrare column)
    const deliveryDate = order.data_livrare ? new Date(order.data_livrare).toLocaleDateString() : 'N/A';
    document.getElementById('delivery-date-value').textContent = deliveryDate;
    
    // Update size (using dimensiune column)
    const size = order.dimensiune || 'N/A';
    document.getElementById('size-value').textContent = size;
    
    // Update description (Descr. Com. Prod)
    const description = order.descr_com_prod || 'N/A';
    document.getElementById('description-value').textContent = description;
    
    // Update article code (using customer_article_number column)
    const articleCode = order.customer_article_number || 'N/A';
    document.getElementById('article-code-value').textContent = articleCode;
    
    // Update prod order (comanda_productie - cantitate)
    const comandaProductie = order.comanda_productie || '';
    const cantitate = order.cantitate || '';
    const prodOrder = comandaProductie && cantitate ? `${comandaProductie}-${cantitate}` : 'N/A';
    document.getElementById('prod-order-value').textContent = prodOrder;
    
    // Update barcode with the same prod order data
    document.getElementById('barcode-text').textContent = prodOrder;
}

// Initialize print service connection and load available printers
function initializePrintService() {
    // Check service status and load printers
    checkPrintServiceStatus()
        .then(serviceStatus => {
            if (serviceStatus) {
                console.log('✅ Print service is available');
                loadAvailablePrinters();
                updateServiceStatusIndicator(true);
            } else {
                console.log('⚠️ Print service not available');
                updateServiceStatusIndicator(false);
            }
        })
        .catch(error => {
            console.log('❌ Print service connection failed:', error);
            updateServiceStatusIndicator(false);
        });
}

// Load available printers from print service
function loadAvailablePrinters() {
    fetch('http://localhost:8899/printers', {
        method: 'GET',
        mode: 'cors'
    })
    .then(response => response.json())
    .then(data => {
        const printerSelect = document.getElementById('printerSelect');
        
        // Clear existing options except default ones
        const defaultOptions = ['default', 'Epson TM-T20', 'Citizen CTS-310', 'custom'];
        Array.from(printerSelect.options).forEach(option => {
            if (!defaultOptions.includes(option.value)) {
                option.remove();
            }
        });
        
        // Add available printers
        if (data.printers && data.printers.length > 0) {
            data.printers.forEach(printer => {
                // Don't add if already exists in default options
                if (!defaultOptions.includes(printer.name)) {
                    const option = document.createElement('option');
                    option.value = printer.name;
                    option.textContent = `${printer.name}${printer.default ? ' (Default)' : ''}${printer.status !== 'ready' ? ' - Offline' : ''}`;
                    
                    // Insert before "Other Printer..." option
                    const customOption = printerSelect.querySelector('option[value="custom"]');
                    printerSelect.insertBefore(option, customOption);
                }
            });
            
            // Set default printer if available
            const defaultPrinter = data.printers.find(p => p.default);
            if (defaultPrinter) {
                printerSelect.value = defaultPrinter.name;
            }
        }
        
        console.log(`Loaded ${data.printers.length} printers from service`);
    })
    .catch(error => {
        console.log('Could not load printers from service:', error);
    });
}

// Update service status indicator
function updateServiceStatusIndicator(isAvailable) {
    // Find or create status indicator
    let statusIndicator = document.getElementById('service-status-indicator');
    if (!statusIndicator) {
        statusIndicator = document.createElement('div');
        statusIndicator.id = 'service-status-indicator';
        statusIndicator.style.cssText = 'font-size: 9px; color: #6c757d; margin-top: 5px; text-align: center;';
        
        // Insert after printer selection
        const printerSelection = document.getElementById('printerSelection');
        printerSelection.appendChild(statusIndicator);
    }
    
    if (isAvailable) {
        statusIndicator.innerHTML = '🟢 <strong>Print service connected</strong><br><small>Direct printing available</small>';
        statusIndicator.style.color = '#28a745';
    } else {
        statusIndicator.innerHTML = '🔴 <strong>Print service offline</strong><br><small>Install and start the service for direct printing</small>';
        statusIndicator.style.color = '#dc3545';
    }
}

// PDF Generation System - No printer setup needed
// Labels are generated as PDF files for universal compatibility
function addPDFGenerationHandler() {
    const printButton = document.getElementById('print-label-btn');
    
    if (printButton) {
        // Update button text and appearance based on print method
        updatePrintButtonText();
        
        // Add event listeners for radio buttons
        document.querySelectorAll('input[name="printMethod"]').forEach(radio => {
            radio.addEventListener('change', updatePrintButtonText);
        });
        
        printButton.addEventListener('click', function(e) {
            e.preventDefault();
            
            // Get selected order
            const selectedRow = document.querySelector('.print-module-table tbody tr.selected');
            if (!selectedRow) {
                alert('Please select an order first from the table below.');
                return;
            }
            
            // Get print method
            const printMethod = document.querySelector('input[name="printMethod"]:checked').value;
            
            if (printMethod === 'direct') {
                handleDirectPrint(selectedRow);
            } else {
                handlePDFGeneration(selectedRow);
            }
        });
    }
}

function updatePrintButtonText() {
    const printButton = document.getElementById('print-label-btn');
    const printMethod = document.querySelector('input[name="printMethod"]:checked').value;
    const printerSelection = document.getElementById('printerSelection');
    
    if (printMethod === 'direct') {
        printButton.innerHTML = '🖨️ Print Directly';
        printButton.title = 'Print directly to thermal label printer';
        printerSelection.style.display = 'block';
    } else {
        printButton.innerHTML = '📄 Generate PDF';
        printButton.title = 'Generate PDF with multiple labels based on quantity';
        printerSelection.style.display = 'none';
    }
}

function handleDirectPrint(selectedRow) {
    const orderId = selectedRow.dataset.orderId;
    const quantityCell = selectedRow.querySelector('td:nth-child(5)');
    const quantity = quantityCell ? parseInt(quantityCell.textContent) : 1;
    const prodOrderCell = selectedRow.querySelector('td:nth-child(2)');
    const prodOrder = prodOrderCell ? prodOrderCell.textContent.trim() : 'N/A';
    
    // Get selected printer
    const printerSelect = document.getElementById('printerSelect');
    let printerName = printerSelect.value;
    
    if (printerName === 'custom') {
        printerName = prompt('Enter your printer name:');
        if (!printerName) return;
    } else if (printerName === 'default') {
        printerName = '';  // Empty for default printer
    }
    
    console.log(`Direct printing to: ${printerName || 'default printer'}`);
    
    // Extract order data from selected row
    const cells = selectedRow.querySelectorAll('td');
    const orderData = {
        id: parseInt(orderId),
        comanda_productie: cells[1].textContent.trim(),
        cod_articol: cells[2].textContent.trim(),
        descr_com_prod: cells[3].textContent.trim(),
        cantitate: parseInt(cells[4].textContent.trim()),
        data_livrare: cells[5].textContent.trim(),
        dimensiune: cells[6].textContent.trim(),
        com_achiz_client: cells[7].textContent.trim(),
        nr_linie_com_client: cells[8].textContent.trim(),
        customer_name: cells[9].textContent.trim(),
        customer_article_number: cells[10].textContent.trim()
    };
    
    // Check for Electron thermal printing first (best option)
    if (window.ThermalPrinter) {
        console.log('🔥 Using Electron thermal printer');
        handleElectronThermalPrint(orderData, printerName, quantity, prodOrder);
        return;
    }
    
    // Fallback to Windows service (if available)
    checkPrintServiceStatus()
        .then(serviceStatus => {
            if (serviceStatus) {
                console.log('🖨️ Using Windows print service');
                return handleServicePrint(orderId, printerName, quantity, prodOrder);
            } else {
                throw new Error('No print service available. Please install the Quality Print Desktop app or Windows service.');
            }
        })
        .catch(error => {
            console.error('Direct print error:', error);
            
            let errorMessage = '❌ Direct printing failed: ' + error.message;
            
            if (error.message.includes('service') || error.message.includes('available')) {
                errorMessage += '\n\n💡 Solutions:\n' +
                    '1. Download and install Quality Print Desktop app (recommended)\n' +
                    '2. Install the Windows print service\n' +
                    '3. Use PDF generation as alternative';
            }
            
            alert(errorMessage);
        });
}

// Handle Electron thermal printing (best option)
function handleElectronThermalPrint(orderData, printerName, quantity, prodOrder) {
    const button = document.getElementById('print-label-btn');
    const originalText = button.textContent;
    button.textContent = 'Printing...';
    button.disabled = true;
    
    // Print each label sequentially
    printSequentialLabels(orderData, printerName, quantity, 0)
        .then(() => {
            alert(`✅ Successfully printed ${quantity} labels!\n📊 Order: ${prodOrder}\n🖨️ Printer: ${printerName || 'Default Printer'}\n🔥 Using Electron Thermal Printing`);
            
            // Update database status
            updatePrintedStatus(orderData.id);
        })
        .catch(error => {
            console.error('Electron thermal print error:', error);
            alert(`❌ Thermal printing failed: ${error.message}\n\n💡 Try using PDF generation instead.`);
        })
        .finally(() => {
            button.textContent = originalText;
            button.disabled = false;
        });
}

// Print labels sequentially for better reliability
async function printSequentialLabels(orderData, printerName, totalQuantity, currentIndex) {
    if (currentIndex >= totalQuantity) {
        return; // All labels printed
    }
    
    const labelNumber = currentIndex + 1;
    const sequentialId = `${orderData.comanda_productie}-${labelNumber.toString().padStart(3, '0')}`;
    
    // Generate label data for this specific label
    const labelData = [
        {
            type: 'text',
            value: 'INNOFA ROMANIA SRL',
            style: { fontWeight: 'bold', fontSize: '12px', textAlign: 'center', marginBottom: '5px' }
        },
        {
            type: 'text',
            value: orderData.customer_name || 'N/A',
            style: { fontSize: '11px', textAlign: 'center', marginBottom: '3px' }
        },
        {
            type: 'text',
            value: '─'.repeat(32),
            style: { textAlign: 'center', fontSize: '8px', marginBottom: '2px' }
        },
        {
            type: 'text',
            value: `Quantity: ${orderData.cantitate || '0'}`,
            style: { fontSize: '10px', marginBottom: '2px' }
        },
        {
            type: 'text',
            value: `Customer Order: ${orderData.com_achiz_client || 'N/A'}-${orderData.nr_linie_com_client || '00'}`,
            style: { fontSize: '10px', marginBottom: '2px' }
        },
        {
            type: 'text',
            value: `Delivery: ${orderData.data_livrare || 'N/A'}`,
            style: { fontSize: '10px', marginBottom: '2px' }
        },
        {
            type: 'text',
            value: `Size: ${orderData.dimensiune || 'N/A'}`,
            style: { fontSize: '10px', marginBottom: '2px' }
        },
        {
            type: 'text',
            value: `Article: ${orderData.customer_article_number || 'N/A'}`,
            style: { fontSize: '10px', marginBottom: '3px' }
        },
        {
            type: 'text',
            value: '─'.repeat(32),
            style: { textAlign: 'center', fontSize: '8px', marginBottom: '3px' }
        },
        {
            type: 'barCode',
            value: sequentialId,
            height: 40,
            width: 2,
            displayValue: true,
            fontsize: 8,
            style: { textAlign: 'center', marginBottom: '5px' }
        },
        {
            type: 'text',
            value: `Label ${labelNumber}/${totalQuantity}`,
            style: { fontSize: '8px', textAlign: 'center', marginBottom: '5px' }
        },
        {
            type: 'text',
            value: ' ', // Add spacing
            style: { fontSize: '6px' }
        }
    ];
    
    const printOptions = {
        printerName: printerName || 'default',
        pageSize: '80mm',
        margin: '2mm 2mm 2mm 2mm',
        copies: 1,
        silent: true,
        preview: false,
        timeOutPerLine: 200
    };
    
    console.log(`🏷️ Printing label ${labelNumber}/${totalQuantity}: ${sequentialId}`);
    
    try {
        // Print this label
        await window.ThermalPrinter.print(labelData, printOptions);
        
        // Small delay between labels
        await new Promise(resolve => setTimeout(resolve, 300));
        
        // Print next label
        return printSequentialLabels(orderData, printerName, totalQuantity, currentIndex + 1);
    } catch (error) {
        throw new Error(`Failed to print label ${labelNumber}: ${error.message}`);
    }
}

// Handle Windows service printing (fallback)
function handleServicePrint(orderId, printerName, quantity, prodOrder) {
    return generatePrintablePDF(orderId, true) // true for paper-saving mode
        .then(pdfUrl => {
            const printData = {
                pdf_url: pdfUrl,
                printer: printerName,
                copies: 1,
                order_id: parseInt(orderId),
                paper_saving: true
            };
            
            return fetch('http://localhost:8899/print-pdf', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify(printData)
            });
        })
        .then(response => {
            if (!response.ok) {
                throw new Error(`Print service error: ${response.status}`);
            }
            return response.json();
        })
        .then(result => {
            if (result.success) {
                alert(`✅ Successfully sent ${quantity} labels to printer!\n📊 Order: ${prodOrder}\n�️ Printer: ${printerName || 'Default'}\n📄 Job ID: ${result.job_id || 'N/A'}`);
                
                // Update database status and refresh table
                updatePrintedStatus(parseInt(orderId));
            } else {
                throw new Error(result.error || 'Unknown print error');
            }
        });
}

// Helper function to check print service status
function checkPrintServiceStatus() {
    return fetch('http://localhost:8899/status', {
        method: 'GET',
        mode: 'cors'
    })
    .then(response => {
        if (response.ok) {
            return response.json().then(data => {
                console.log('Print service status:', data);
                return data.status === 'running';
            });
        }
        return false;
    })
    .catch(error => {
        console.log('Print service not available:', error.message);
        return false;
    });
}

// Helper function to generate PDF for printing
function generatePrintablePDF(orderId, paperSaving = true) {
    return fetch(`/generate_labels_pdf/${orderId}/${paperSaving ? 'true' : 'false'}`, {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json'
        }
    })
    .then(response => {
        if (!response.ok) {
            throw new Error(`Failed to generate PDF: ${response.status}`);
        }
        return response.blob();
    })
    .then(blob => {
        // Create a temporary URL for the PDF
        return URL.createObjectURL(blob);
    });
}

function handlePDFGeneration(selectedRow) {
    const orderId = selectedRow.dataset.orderId;
    const quantityCell = selectedRow.querySelector('td:nth-child(5)');
    const quantity = quantityCell ? parseInt(quantityCell.textContent) : 1;
    const prodOrderCell = selectedRow.querySelector('td:nth-child(2)');
    const prodOrder = prodOrderCell ? prodOrderCell.textContent.trim() : 'N/A';
    
    const button = document.getElementById('print-label-btn');
    const originalText = button.textContent;
    button.textContent = 'Generating PDF...';
    button.disabled = true;
    
    console.log(`Generating PDF for order ${orderId} with ${quantity} labels`);
    
    // Always use paper-saving mode (optimized for thermal label printers)
    const paperSavingMode = 'true';
    
    console.log(`Using paper-saving mode for optimal label printing`);
    
    // Generate PDF with paper-saving mode enabled
    fetch(`/generate_labels_pdf/${orderId}/${paperSavingMode}`, {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json'
        }
    })
    .then(response => {
        if (!response.ok) {
            throw new Error(`HTTP error! status: ${response.status}`);
        }
        return response.blob();
    })
    .then(blob => {
        // Create blob URL for PDF
        const url = window.URL.createObjectURL(blob);
        
        // Create download link for PDF
        const a = document.createElement('a');
        a.href = url;
        a.download = `labels_${prodOrder}_${quantity}pcs.pdf`;
        document.body.appendChild(a);
        a.click();
        document.body.removeChild(a);
        
        // Also open PDF in new tab for printing
        const printWindow = window.open(url, '_blank');
        if (printWindow) {
            printWindow.focus();
            
            // Wait for PDF to load, then show print dialog and cleanup
            setTimeout(() => {
                printWindow.print();
                
                // Clean up blob URL after print dialog is shown
                setTimeout(() => {
                    window.URL.revokeObjectURL(url);
                }, 2000);
            }, 1500);
        } else {
            // If popup was blocked, clean up immediately
            setTimeout(() => {
                window.URL.revokeObjectURL(url);
            }, 1000);
        }
        
        // Show success message
        alert(`✅ PDF generated successfully!\n📊 Order: ${prodOrder}\n📦 Labels: ${quantity} pieces\n\nThe PDF has been downloaded and opened for printing.\n\n📋 The order has been marked as printed and removed from the unprinted orders list.`);
        
        // Refresh the orders table to reflect printed status
        // This will automatically hide the printed order from the unprinted orders list
        setTimeout(() => {
            refreshUnprintedOrdersTable();
        }, 1000);
    })
    .catch(error => {
        console.error('Error generating PDF:', error);
        alert('❌ Failed to generate PDF labels. Error: ' + error.message);
    })
    .finally(() => {
        // Reset button state
        button.textContent = originalText;
        button.disabled = false;
    });
}

function updatePrintedStatus(orderId) {
    // Call backend to update printed status for direct printing
    fetch(`/update_printed_status/${orderId}`, {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json'
        }
    })
    .then(response => response.json())
    .then(data => {
        console.log('Updated printed status:', data);
        // Refresh table
        setTimeout(() => {
            refreshUnprintedOrdersTable();
        }, 1000);
    })
    .catch(error => {
        console.error('Error updating printed status:', error);
    });
}

// Function to refresh the unprinted orders table
function refreshUnprintedOrdersTable() {
    console.log('Refreshing unprinted orders table...');
    const button = document.getElementById('check-db-btn');
    
    // Show refreshing state
    const originalText = button.textContent;
    button.textContent = 'Refreshing...';
    button.disabled = true;
    
    fetch('/get_unprinted_orders')
        .then(response => {
            if (response.status === 403) {
                return response.json().then(errorData => {
                    throw new Error(`Access Denied: ${errorData.error}`);
                });
            } else if (!response.ok) {
                return response.text().then(text => {
                    throw new Error(`HTTP ${response.status}: ${text}`);
                });
            }
            return response.json();
        })
        .then(data => {
            console.log('Refreshed data:', data);
            const tbody = document.getElementById('unprinted-orders-table');
            tbody.innerHTML = '';
            
            if (data.length === 0) {
                // No unprinted orders left
                tbody.innerHTML = '<tr><td colspan="15" style="text-align: center; padding: 20px; color: #28a745;"><strong>✅ All orders have been printed!</strong><br><small>No unprinted orders remaining.</small></td></tr>';
                
                // Clear label preview
                clearLabelPreview();
            } else {
                // Populate table with remaining unprinted orders
                data.forEach((order, index) => {
                    const tr = document.createElement('tr');
                    tr.dataset.orderId = order.id;
                    tr.dataset.orderIndex = index;
                    tr.style.cursor = 'pointer';
                    tr.innerHTML = `
                        <td style="font-size: 9px;">${order.id}</td>
                        <td style="font-size: 9px;"><strong>${order.comanda_productie}</strong></td>
                        <td style="font-size: 9px;">${order.cod_articol || '-'}</td>
                        <td style="font-size: 9px;">${order.descr_com_prod}</td>
                        <td style="text-align: right; font-weight: 600; font-size: 9px;">${order.cantitate}</td>
                        <td style="text-align: center; font-size: 9px;">
                            ${order.data_livrare ? new Date(order.data_livrare).toLocaleDateString() : '-'}
                        </td>
                        <td style="text-align: center; font-size: 9px;">${order.dimensiune || '-'}</td>
                        <td style="font-size: 9px;">${order.com_achiz_client || '-'}</td>
                        <td style="text-align: right; font-size: 9px;">${order.nr_linie_com_client || '-'}</td>
                        <td style="font-size: 9px;">${order.customer_name || '-'}</td>
                        <td style="font-size: 9px;">${order.customer_article_number || '-'}</td>
                        <td style="font-size: 9px;">${order.open_for_order || '-'}</td>
                        <td style="text-align: right; font-size: 9px;">${order.line_number || '-'}</td>
                        <td style="text-align: center; font-size: 9px;">
                            ${order.printed_labels == 1 ? 
                                '<span style="color: #28a745; font-weight: bold;">✓ Yes</span>' : 
                                '<span style="color: #dc3545;">✗ No</span>'}
                        </td>
                        <td style="font-size: 9px; color: #6c757d;">
                            ${order.created_at ? new Date(order.created_at).toLocaleString() : '-'}
                        </td>
                    `;
                    
                    // Add click event for row selection
                    tr.addEventListener('click', function() {
                        console.log('Row clicked:', order.id);
                        
                        // Remove selection from other rows
                        document.querySelectorAll('.print-module-table tbody tr').forEach(row => {
                            row.classList.remove('selected');
                            const cells = row.querySelectorAll('td');
                            cells.forEach(cell => {
                                cell.style.backgroundColor = '';
                                cell.style.color = '';
                            });
                        });
                        
                        // Select this row
                        this.classList.add('selected');
                        
                        // Force visual selection with inline styles
                        const cells = this.querySelectorAll('td');
                        cells.forEach(cell => {
                            cell.style.backgroundColor = '#007bff';
                            cell.style.color = 'white';
                        });
                        
                        // Update label preview with selected order data
                        updateLabelPreview(order);
                    });
                    
                    tbody.appendChild(tr);
                });
                
                // Auto-select first row
                setTimeout(() => {
                    const firstRow = document.querySelector('.print-module-table tbody tr');
                    if (firstRow && !firstRow.querySelector('td[colspan]')) { // Don't select if it's the "no data" row
                        firstRow.classList.add('selected');
                        const cells = firstRow.querySelectorAll('td');
                        cells.forEach(cell => {
                            cell.style.backgroundColor = '#007bff';
                            cell.style.color = 'white';
                        });
                        updateLabelPreview(data[0]);
                    }
                }, 100);
            }
        })
        .catch(error => {
            console.error('Error refreshing orders:', error);
            const tbody = document.getElementById('unprinted-orders-table');
            tbody.innerHTML = '<tr><td colspan="15" style="text-align: center; padding: 20px; color: #dc3545;"><strong>❌ Failed to refresh data</strong><br><small>' + error.message + '</small></td></tr>';
        })
        .finally(() => {
            button.textContent = originalText;
            button.disabled = false;
        });
}

// Function to clear label preview when no orders are available
function clearLabelPreview() {
    document.getElementById('customer-name-row').textContent = 'No orders available';
    document.getElementById('quantity-ordered-value').textContent = '0';
    document.getElementById('client-order-info').textContent = 'N/A';
    document.getElementById('delivery-date-value').textContent = 'N/A';
    document.getElementById('size-value').textContent = 'N/A';
    document.getElementById('description-value').textContent = 'N/A';
    document.getElementById('article-code-value').textContent = 'N/A';
    document.getElementById('prod-order-value').textContent = 'N/A';
    document.getElementById('barcode-text').textContent = 'N/A';
    document.getElementById('vertical-barcode-text').textContent = '000000-00';
}

// Download Electron app function
function downloadElectronApp() {
    // Download the Quality Print Desktop v1.0.0
    const link = document.createElement('a');
    link.href = '/download/desktop-app';
    link.download = 'Quality_Print_Desktop_v1.0.0.zip';
    document.body.appendChild(link);
    link.click();
    document.body.removeChild(link);
    
    // Show success message
    showNotification('📱 Quality Print Desktop v1.0.0 download started!', 'success');
}

function downloadPortableApp() {
    // Download the portable Windows version
    const link = document.createElement('a');
    link.href = '/download/portable-app';
    link.download = 'Quality_Print_Desktop_Portable_v1.0.0_Windows.zip';
    document.body.appendChild(link);
    link.click();
    document.body.removeChild(link);
    
    // Show success message
    showNotification('💻 Portable Windows version download started!', 'success');
}

document.getElementById('print-label-btn').addEventListener('click', function() {
    console.log('Generate PDF logic here');
});
</script>
{% endblock %}